When you have purchased a LIVE Services subscription it is automatically activated on your device. All you need to do to use the service is to switch the device on.
Note : If you have a built-in navigation device it can take up to 48 hours from the time of purchase until LIVE Services are activated.
Checking the status of your LIVE Services subscription
To check the date that your on-device service is valid to, see How do I check the status of my LIVE Services subscription?